internal static object INTERNAL_ConvertFromString(string cursorStr)
{
if (Enum.TryParse(cursorStr, out CursorType cursorType) &&
IsValidCursorType(cursorType))
{
return(Cursors.EnsureCursor(cursorType));
}
else
{
throw new ArgumentException(string.Format("'{0}' cursor type is not valid.", cursorStr));
}
}
/// <summary>
/// TypeConverter method implementation.
/// </summary>
/// <param name="context">ITypeDescriptorContext</param>
/// <param name="culture">current culture (see CLR specs)</param>
/// <param name="value">value to convert from</param>
/// <returns>value that is result of conversion</returns>
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (value is string s)
{
string text = s.Trim();
if (Enum.TryParse(text, true, out CursorType cursorType) &&
(int)cursorType >= (int)CursorType.None && (int)cursorType <= (int)CursorType.Eraser)
{
return(Cursors.EnsureCursor(cursorType));
}
else
{
throw new FormatException($"'{value}' is not a valid token.");
}
}
throw GetConvertFromException(value);
}
static Cursor()
{
TypeFromStringConverters.RegisterConverter(typeof(Cursor), INTERNAL_ConvertFromString);
Cursors.FillCursorTypeToStringDictionary();
}